TWI440345B - Wireless communication systems and methods for the same - Google Patents

Description

Wireless communication system and wireless communication method

This proposal relates to a wireless communication system and a wireless communication method, and more particularly to a wireless communication system and a wireless communication method that can communicate between different base station subsystems.

With the continuous development of wireless communication technology, users can access information on the Internet or conduct voice communication anytime and anywhere through mobile stations regardless of time and place.

However, with the increasing awareness of environmental protection and the cost of construction, it is increasingly difficult to increase the number of large base stations to expand the coverage of wireless communications. In addition, according to the research report, two-thirds of the time for future users to communicate will occur indoors. Large-scale base stations are also difficult to balance wireless transmission in indoors in terms of transmission speed and quality.

Therefore, femtocells with low power, low cost and small coverage will be widely deployed to reduce the dead angle of indoor coverage and improve the transmission speed and quality of wireless communication. In addition, with the Mobile Virtual Private Network (MVPN) service provided by the telecom operators, mobile devices in the same group can communicate wirelessly at a relatively low cost. Therefore, in the future, within enterprises, institutions or schools, it is very likely that mobile phones will replace traditional extensions. Therefore, the amount of communication using micro base stations in the future will increase dramatically.

However, services that traditionally utilize MVPN are transmitted via the core network. Therefore, after the traffic is greatly increased, the core network transmission volume will face a severe burden.

In order to reduce the burden on the core network, the 3rd Generation Partnership Project (3GPP) proposes a mechanism for Local Call Local Switch (LCLS). If the originating mobile station (oMS) and the terminating base station (tMS) belong to the same Base Station Subsystem (BSS), the voice data is in the base station subsystem. Direct routing to save data on the core network.

However, the current 3GPP proposed mechanism must be connected to the same base station subsystem when both the mobile terminal device and the receiver mobile device are connected to perform LCLS. If it is inside a company, an organization or a school, it is possible for the mobile terminal device and the mobile terminal device to be connected to different micro base stations. Because different micro-base stations belong to different base station subsystems, it is impossible to identify whether the call needs LCLS, and the micro-base stations do not know each other's Internet Protocol (IP) address or It is a port, so the voice data cannot be directly circulated to the other party. Therefore, the LCLS mechanism mentioned above still cannot be applied to the environment of multiple micro base stations within enterprises, institutions or schools.

This proposal proposes a wireless communication system and wireless communication method.

According to an embodiment, a wireless communication system is proposed. The wireless communication system includes an originating base station subsystem and a terminating base station subsystem. The originating base station subsystem is configured to couple an originating mobile station. The base station subsystem is coupled to a terminating mobile station, and the base station subsystem can exchange control messages with the base station subsystem via a core network or other mechanism. The utterance base station subsystem and the receiver base station subsystem transmit a contact information by using the exchanged control message, and the utterance base station subsystem and the receiver base station subsystem establish a direct connection according to the contact information. And the calling base station subsystem and the receiving end base station subsystem transmit a call packet by the direct connection.

According to an embodiment, a method of wireless communication is presented. The wireless communication method is configured to connect an originating base station subsystem and a terminating base station subsystem, the method comprising: according to a call control protocol, the calling base station subsystem And transmitting, by the receiving end base station subsystem, a contact information; according to the contact information, the base station subsystem of the called end establishes a direct connection with the base station subsystem of the calling end; and the packet of the call is transmitted by the direct connection.

The foregoing contact information may be the caller's contact information (or the caller base station subsystem contact information) or the caller's contact information (or the caller base station subsystem contact information).

The transmission of the contact information may store the call identification number and contact information on the server via one of the base station subsystem and the base station subsystem of the call end, and the other of the base station subsystem and the base station subsystem of the call end are self-serving. The device reads the call identification number and contact information to establish a direct connection.

In addition, the transmission of the contact information may also be in the broadcast group by one of the base station subsystem and the base station subsystem of the call end, and broadcast the call identification number to the other of the base station subsystem and the base station subsystem of the call end. You can then get contact information based on the call identification number.

With the above-described wireless communication system and wireless communication method implementation example, different base station subsystems can be directly connected without going through the core network. Therefore, the data transmission burden of the core network can be greatly reduced. In addition, the proposed wireless communication system and wireless communication method are compatible with the current communication standard, and the LCLS mechanism can be completed without changing the standard.

The detailed features and advantages of the present invention are further described in detail in the following embodiments, which are sufficient to enable anyone skilled in the art to understand the technical content of the present invention and implement it according to the contents of the present specification, the scope of the patent application, and Schematic, anyone familiar with the art can easily understand the purpose and advantages of this proposal.

In order to familiarize the person skilled in the art with the prior art of this proposal, the following is a definition of some of the specific nouns used in this proposal.

The originating is the party that actively initiates communication.

The terminating is the party that passively receives communication.

A base station subsystem is a single-channel or multi-channel two-way radio transmission and resource allocation control unit that is fixed in one place. The base station subsystem may include a machine or a module such as a base transceiver station (BTS; or a base station controller) and a base station controller. The base transceiver station has an antenna unit for transmitting and receiving radio signals. The base station controller is responsible for the management and control of channel coding and allocation of wireless channels. In addition, the base station subsystem may also include a base transceiver station and a base station controller. In other words, the base station subsystem may integrate the base transceiver station and the base station controller into a base station, such as a femtocell. That is to say, the base station subsystem of the calling terminal includes the base transceiver station of the calling terminal and the base station controller of the calling terminal, and the base station subsystem of the receiving end includes the receiving base base transceiver station and the receiving end base station controller.

The routing device is a router or network switch, or any component or device that can be used as a routing function. The routing device can connect to more than two different networks, such as the regional network and the Internet.

The mobile station is a mobile two-way radio transmitter. The mobile device can communicate with the base station via radio.

The core network is used to connect the base stations to the public switched telephone network (PSTN) or the Internet. The core network may have a mobile switch center (MSC) and a mobile database. The mobile switching center is used to direct voice data or data to a designated destination. The mobile database is used to store the current location of the mobile device. Through the core network, mobile devices can transmit voice data or data to a designated destination. In the core network, in addition to the transmission of voice data, a system for recording user information and billing mechanisms is also included.

The call identification number is a number assigned by the mobile network when the call is initiated. This call identification number is a unique number and only corresponds to this call. The call identification number may also be a number recognized by the base station subsystem of the calling terminal and the base station subsystem of the receiving end. For example, when the calling base station subsystem requests to connect, the mobile network first gives the transmitting base station subsystem a first number. The number is forwarded, and the base station subsystem generates the call identification number according to the first number, and then the base station subsystem of the call end directly associates with the base station subsystem of the call according to the call identification number. For another example, when the calling base station subsystem requests to connect, the mobile network first gives the receiving base station subsystem a first number, and the receiving end base station subsystem generates the call identification number according to the first number, and then the receiving end The base station subsystem is directly coupled to the base station subsystem of the base station according to the call identification number.

The caller's contact information is the Internet Protocol (IP) address and port of the base station subsystem (or base station), or other information that can be used to specify voice data or data. The indication of the destination, such as but not limited to a digital indication.

The receiving end contact information is the Internet Protocol (IP) address and port of the receiving base station, or other digital sign that can be used to specify voice data or data to the destination.

Direct connection is between different base station subsystems, which is a direct point-to-point packet transmission.

This proposal proposes a wireless communication system and wireless communication method between the base station subsystems. The base stations in different subsystems can directly transmit voice data by using the LCLS mechanism.

Please refer to "Figure 1" as a block diagram of an example of a wireless communication system implementation in accordance with this proposal. The wireless communication system 10 includes an originating base station subsystem (oBSS) and a terminating base station subsystem (tBSS). The originating base station subsystem 20 can include a base station transceiver station 20a and a base station controller 20b. The originating base station subsystem 20 itself or the originating base transceiver station 20a can be coupled to the originating mobile station (oMS) by radio. The terminating end base station subsystem 30 can also include a terminating end base transceiver station 30a and a terminating end base station controller 30b. The receiving end base station subsystem 30 itself or the receiving end base transceiver station 30a is coupled to the terminating mobile station (tMS) by radio, and the receiving end base station subsystem 30 can be connected via a core network or Other mechanisms exchange control messages with the base station, such as but not limited to handshaking (Handshaking). The base station subsystem 20 and the base station subsystem 30 are two different base station subsystems, and the base station subsystem 20 and the base station subsystem 30 can be directly accessed via the network 50. It can be a local area network, a corporate network, or connected to the core network 60 via a gateway or router (not shown).

Please refer to "Figure 2" as a block diagram of an example of a wireless communication system implementation in accordance with this proposal. The base station subsystem 20 and the base station subsystem 30 are connected to a server 70 via a network. In this embodiment, the base station subsystem 20 and the base station subsystem 30 of the call end must first set the contact mode of the server 70, such as an IP address and a port, to facilitate the base station of the caller. System 20 and receiver base station subsystem 30 are coupled to server 70. The server 70 can be a server integrated in a gateway, in addition to a server built by a general enterprise or a school.

The wireless communication system of the present invention transmits a contact information between the transmitting base station subsystem and the receiving base station subsystem through the exchanged control information, and the contact information may be the calling end contact information or the receiving end contact information. Thereafter, the originating base station subsystem and the receiving end base station subsystem establish a direct connection according to the contact information, and therefore, the calling base station subsystem and the receiving end base station subsystem transmit a call packet by the direct connection.

According to the implementation example of the wireless communication method of the present proposal, the following steps may be included: Step 1: According to a call control protocol, a contact information is transmitted between the base station subsystem of the calling terminal and the base station subsystem of the called terminal; Step 2: According to the contact Information, the base station subsystem of the call end establishes a direct connection with the base station subsystem of the call end; and step 3: the packet of the call is transmitted by the direct connection.

The contact information in the foregoing steps may be the caller contact information (or the caller base station subsystem contact information), or the caller contact information (or the caller base station subsystem contact information), and the manner in which the contact information is transmitted. There may be different implementation means, which are respectively illustrated by the following embodiments.

Please refer to FIG. 3, which is a flow chart of a method embodiment according to one of the proposals. This method can be implemented by the embodiment of the wireless communication system 10 described in "Fig. 2".

In step S101, when the user inputs a telephone number by using the mobile terminal mobile device 22, the mobile terminal mobile device 22 transmits a service request to the originating base station subsystem 20. After receiving the service request, the telecommunications network controller (possibly BSS, BTS, MSC or SGSN (Serving GPRS Support Node), GPRS (General Packet Radio Service)) of the calling terminal will assign a call to the call. Identification number. After that, the utterance base station subsystem 20 learns the call identification number, and transmits the utterance contact information and the call identification number to the server 70. The server 70 receives a caller's contact information and can transmit a confirmation message to the originating base station subsystem 20.

In step S103, the originating base station subsystem 20 stores the caller contact information and the call identification number on the server 70. The server 70 will establish a call record interval in its database to store the contact information and the call identification number of the base station subsystem of the caller.

In step S105, the originating base station subsystem 20 transmits the call identification number to the terminating base station subsystem 30 in accordance with a call control protocol. The flow performed by this call control protocol may include, but is not limited to, call control procedures such as call setup or handover. The connection between the utterance base station subsystem 20 and the receiver base station subsystem 30 through the call control protocol is a core network that can communicate through various communication protocols (such as GSM, 3G or Wimax, LTE), or It is a wireless network (such as IEEE 802.11a/b/g/n or IEEE 802.16 d/e and other related technologies), or a wired network (such as Ethernet).

The sequence performed in step S105 may be performed before or after step S101 or step S103, or may be performed in synchronization with step S101 or step S103.

In step S109, after receiving the call identification number, the receiving base station subsystem 30 can query the server 70 according to the call identification number whether the call identification number is stored in its database. The server 70 can find the caller contact information by using the call identification number. Thereafter, the server 70 transmits the utterance contact information to the receiver base station subsystem 30, and the receiver base station subsystem 30 can obtain the utterance contact information.

In step S111, the terminating base station subsystem 30 can establish a direct connection with the originating base station subsystem 20 based on the caller contact information.

In step S113, the caller base station subsystem 30 and the originating base station subsystem 20 can directly transmit the call packets by direct connection. Therefore, the LCLS mechanism can be established between the terminating base station subsystem 30 and the originating base station subsystem 20. After the LCLS mechanism is successfully established, the connection originally established via the call control protocol will be suspended to save the transmission load.

The foregoing call identification number may be obtained (or called AC) by the originating base station subsystem 20 and the called end base station subsystem 30.

It can be seen from the above description that the first step is the steps S101, S103, S105, and S109 in the embodiment, the second step is the step S111, and the third step is the step S113.

Please refer to Figure 4, which is a flow chart of a method embodiment according to one of the proposals. This method can be implemented by the embodiment of the wireless communication system 10 described in "Fig. 2".

In step S201, when the user inputs a telephone number by using the mobile terminal mobile device 22, the mobile terminal mobile device 22 transmits a service request to the originating base station 20. After receiving the service request, the telecommunications network controller at the originating end will assign a call identification number to the call. Thereafter, the originating base station subsystem 20 transmits the call identification number to the terminating base station subsystem 30 in accordance with a call control protocol. In step S205, after receiving the call identification number, the receiving end base station subsystem 30 transmits the receiving end contact information and the call identification number to the server 70. The server 70 can transmit a confirmation message to the receiver base station subsystem 30 upon receiving the caller's contact information.

In step S207, the terminating base station subsystem 30 stores the callee contact information and the call identification number on the server 70. The server 70 will establish a call record interval in its database to store the caller contact information and the call identification number.

In step S209, the originating base station subsystem 20 can query the server 70 according to the call identification number whether the call identification number is stored in its database. The server 70 can find the contact information of the callee by using the call identification number. Thereafter, the server 70 transmits the callee contact information to the originating base station subsystem 20, and the originating base station subsystem 20 can obtain the caller contact information.

In step S211, the originating base station subsystem 20 establishes a direct connection with the terminating base station subsystem 30 based on the receiving end contact information.

In step S213, the caller base station subsystem 30 and the originating base station subsystem 20 can directly transmit the call packets by direct connection. Therefore, the LCLS mechanism can be established between the terminating base station subsystem 30 and the originating base station subsystem 20. After the successful establishment of the LCLS mechanism between the base station subsystem 30 and the base station subsystem 20, the association established via the call control protocol will be suspended to save the transmission load.

In the above two embodiments, after the LCLS mechanism is successfully established between the terminating base station subsystem 30 and the originating base station subsystem 20, a message may be transmitted by the originating base station subsystem 20 or the terminating base station subsystem 30 to The server 70 requests the server 70 to delete the call identification number and the caller contact data or the caller contact information.

It can be seen from the above description that the first step is the steps S201, S205, S207, and S209 in the embodiment, the second step is the step S211, and the third step is the step S213.

Please refer to "figure 5", which is a flow chart of a method embodiment according to one of the proposals. This method can be implemented by the embodiment of the wireless communication system 10 described in "FIG. 1".

In step S301, when the user inputs a telephone number using the mobile terminal mobile device 22, the mobile terminal mobile device 22 transmits a service request to the originating base station subsystem 20. After receiving the service request, the telecommunications network controller of the originating station will assign a call identification number to the call. Thereafter, the originating base station subsystem 20 transmits the call identification number to the terminating base station subsystem 30 in accordance with a call control protocol.

In step S305, the originating base station subsystem 20 broadcasts the call identification number and the utterance contact information in a broadcast group. A broadcast group can be, for example, a regional network, an entire subnet, or a plurality of designated terminals. The originating base station subsystem 20 can transmit the broadcast using a broadcasting address.

The sequence of step S301 may be performed before or after step S305, or may be performed in synchronization with step S305.

In step S307, if the terminating base station subsystem 30 and the terminating base station subsystem 20 are in a broadcast group, the terminating base station subsystem 30 can receive the call identification number and utterance broadcasted by the originating base station subsystem 20. Contact information. After receiving the broadcast, the terminating base station subsystem 30 compares the broadcast call identification number received via the broadcast with the call identification number transmitted via the signal link. If the receiving base station subsystem 30 compares the two call identification numbers, the receiving base station subsystem 30 can obtain the utterance contact information from the broadcasted data.

In step S309, the terminating base station subsystem 30 establishes a direct connection with the originating base station subsystem 20 based on the caller contact information.

In step S311, by directly connecting, the terminating base station subsystem 30 and the terminating base station subsystem 20 can directly transmit the call packets. Therefore, the LCLS mechanism can be established between the terminating base station subsystem 30 and the originating base station subsystem 20. After the successful establishment of the LCLS mechanism between the base station subsystem 30 and the base station subsystem 20, the association established via the call control protocol will be suspended to save the transmission load.

It can be seen from the above description that the first step is the steps S301, S305, and S307 in the embodiment, the second step is the step S309, and the third step is the step S311.

Please refer to Figure 6 for a flow chart of a method embodiment in accordance with one of the proposals. This method can be implemented by the embodiment of the wireless communication system 10 described in "FIG. 1".

In step S401, when the user inputs a telephone number by using the mobile terminal mobile device 22, the mobile terminal mobile device 22 transmits a service request to the originating base station subsystem 20. After receiving the service request, the telecommunications network controller of the originating station will assign a call identification number to the call. Thereafter, the originating base station subsystem 20 transmits the call identification number to the terminating base station subsystem 30 in accordance with a call control protocol.

In step S405, the terminating base station subsystem 30 broadcasts the call identification number and the caller's contact information in a broadcast group. A broadcast group can be, for example, a regional network, an entire subnet, or a plurality of designated terminals. The receiving end base station subsystem 30 can perform broadcast transmission using a broadcasting address.

In step S407, if the originating base station subsystem 20 and the receiving base station subsystem 30 are in a broadcast group, the originating base station subsystem 20 can receive the call identification number and the received message broadcasted by the receiving base station subsystem 30. Contact information. After receiving the broadcast, the originating base station subsystem 20 compares the generated call identification number with the call identification number generated by the broadcast. If the utterance base station subsystem 20 matches the two call identification numbers, the utterance is The end base station subsystem 20 can obtain the receiving end contact information from the broadcasted data.

In step S409, the originating base station subsystem 20 establishes a direct connection with the terminating base station subsystem 30 based on the receiving end contact information.

In step S411, the caller base station subsystem 30 and the originating base station subsystem 20 can directly transmit the call packets by direct connection. Therefore, the LCLS mechanism can be established between the terminating base station subsystem 30 and the originating base station subsystem 20. After the successful establishment of the LCLS mechanism between the base station subsystem 30 and the base station subsystem 20, the association established via the call control protocol will be suspended to save the transmission load.

As can be seen from the above description, the first step is the steps S401, S405, and S407 in the embodiment, the second step is the step S409, and the third step is the step S411.

Please refer to Figure 7 for a flow chart of a method embodiment in accordance with one of the proposals. This method can be implemented by the embodiment of the wireless communication system 10 described in "FIG. 1".

In step S501, when the user inputs a telephone number by using the mobile terminal device 22, the originating mobile device 22 sends a service request to the originating base station subsystem 20. Upon receipt of the service request, the telecommunications network controller assigns a call identification number to the call. Thereafter, the originating base station subsystem 20 transmits the utterance contact information to the terminating base station subsystem 30 in accordance with a call control protocol.

In this step, the originating base station subsystem 20 can transmit the utterance contact information in the form of a data field without changing the original call control protocol. To the receiving end base station subsystem 30. In addition, the originating base station subsystem 20 can also transmit an LCLS-related identification name to the terminating base station subsystem 30 by messages exchanged in accordance with the call control protocol. This identifying name can be the name that represents the business, institution, or school. Both the originating base station subsystem 20 and the terminating end base station subsystem 30 may have identical or mutually identifiable identification names. Therefore, when the base station subsystem 30 can determine whether the base station subsystem 20 belongs to the same unit (for example, a company, an organization, a school) by the identification name, or belongs to a cooperation unit that has an LCLS service contract.

If the terminating base station subsystem 30 determines that the LCLS can be established with the originating base station subsystem 20, in step S505, the terminating base station subsystem 30 establishes a direct connection with the originating base station subsystem 20 based on the caller contact information.

In step S507, the caller base station subsystem 30 and the originating base station subsystem 20 can directly transmit the call packets by direct connection. Therefore, the LCLS mechanism can be established between the terminating base station subsystem 30 and the originating base station subsystem 20. After the successful establishment of the LCLS mechanism between the base station subsystem 30 and the base station subsystem 20, the association established via the call control protocol will be suspended to save the transmission load.

It can be seen from the above description that the first step is the step S501 in this embodiment, the second step is the step S505, and the third step is the step S507.

Please refer to FIG. 8 for a flow chart of a method according to an embodiment of the present proposal. This method can be implemented by the embodiment of the wireless communication system 10 described in "FIG. 1".

In step S601, when the user inputs a power by using the mobile terminal device 22 After the phone number, the originating mobile device 22 sends a service request to the originating base station subsystem 20. Upon receipt of the service request, the telecommunications network controller assigns a call identification number to the call. Thereafter, the base station subsystem 30 transmits the callee contact information to the originating base station subsystem 20 in accordance with the message exchanged by a call control protocol.

In this step, the terminating base station subsystem 30 can transmit the contact information (or the LCLS related identification name) in the form of a data field to the originating base without changing the original call control protocol. Desk subsystem 20. In addition, the terminating base station subsystem 30 can also transmit an LCLS related identification name to the originating base station subsystem 20 by exchanging control messages. This identifying name can be the name that represents the business, institution, or school. Both the originating base station subsystem 20 and the terminating end base station subsystem 30 may have identical or mutually identifiable identification names. Therefore, when the base station subsystem 20 can determine whether the base station subsystem 30 belongs to the same unit (for example, a company, an organization, or a school) by the identification name, or belongs to a cooperation unit that has an LCLS service contract.

If the base station subsystem 20 determines that the LCLS can be established with the base station subsystem 30, in step S605, the base station subsystem 20 establishes a direct connection with the base station subsystem 30 according to the contact information.

In step S607, by directly connecting, the terminating base station subsystem 30 and the originating base station subsystem 20 can directly transmit the call packets. Therefore, the LCLS mechanism can be established between the terminating base station subsystem 30 and the originating base station subsystem 20. After the successful establishment of the LCLS mechanism between the base station subsystem 30 and the base station subsystem 20, the association established via the call control protocol will be suspended to save the transmission load.

It can be seen from the above description that the first step is the step S601 in the embodiment, the second step is the step S605, and the third step is the step S607.

With the wireless communication system and the wireless communication method described above, different base station subsystems do not need to be connected through a call control protocol, that is, the connection can be directly performed. Therefore, the data transfer burden can be greatly reduced. In addition, the proposed wireless communication system and wireless communication method are compatible with the current communication standard, and the LCLS mechanism can be completed without changing the standard.

Although this proposal is disclosed above in the foregoing embodiment, it is not intended to limit the proposal. All changes and refinements are within the scope of the patent protection of this proposal without departing from the spirit and scope of this proposal. Please refer to the attached patent application scope for the scope of protection defined in this proposal.

10. . . Wireless communication system

20. . . Speaking base station subsystem

20a. . . Base transceiver

20b. . . Base station controller

twenty two. . . Speaking mobile device

30. . . Receiver base station subsystem

30a. . . Base transceiver

30b. . . Base station controller

32. . . Receiver mobile device

50. . . network

60. . . Core network

70. . . server

"FIG. 1" is a block diagram of an embodiment of a wireless communication system proposed in accordance with the present proposal;

"Picture 2" is a block diagram of an embodiment of a wireless communication system proposed in accordance with the present proposal;

3 is a flow chart of an embodiment of a method in accordance with an embodiment of the present proposal;

Figure 4 is a flow chart of an embodiment of a method in accordance with an embodiment of the present proposal;

Figure 5 is a flow chart of an embodiment of a method in accordance with an embodiment of the present proposal;

Figure 6 is a flow chart of an embodiment of a method in accordance with an embodiment of the present proposal;

Figure 7 is a flow chart of an embodiment of a method in accordance with an embodiment of the present proposal;

Figure 8 is a flow chart of an embodiment of a method in accordance with an embodiment of the present proposal.

10. . . Wireless communication system

20. . . Speaking base station subsystem

20a. . . Base transceiver

20b. . . Base station controller

twenty two. . . Speaking mobile device

30. . . Receiver base station subsystem

30a. . . Base transceiver

30b. . . Base station controller

32. . . Receiver mobile device

50. . . network

60. . . Core network

Claims (15)

A wireless communication system includes: an originating base station subsystem for coupling an originating mobile station; and a terminating base station subsystem for using a terminating base station subsystem To couple a terminating mobile station, the base station subsystem exchanges a control message with the base station subsystem via a core network; wherein the base station subsystem And transmitting, by the received base station subsystem, a contact information by using the exchanged control message, the base station subsystem and the base station subsystem of the call end establish a direct connection according to the contact information, and the base station subsystem of the call center The base station subsystem transmits a call packet by using the direct connection; wherein the base station subsystem transmits a call contact information and a call identification number to a server, and the server stores the call contact information and The call identification number, which is borrowed by the base station subsystem Transmitting the call identification number to the base station subsystem by the exchanged control message, the base station subsystem of the callee finds and obtains the contact information of the caller according to the call identification number, the base station subsystem of the called end The direct connection is established with the utterance base station subsystem according to the utterance contact information. A wireless communication system comprising: An originating base station subsystem for coupling an originating mobile station; and a terminating base station subsystem for coupling to a receiver terminal a terminating mobile station, the base station subsystem exchanges a control message with the base station subsystem via a core network; wherein the base station subsystem and the base station subsystem Transmitting a contact information by the exchanged control message, the base station subsystem and the base station subsystem of the call end establish a direct connection according to the contact information, and the base station subsystem of the call end and the base station subsystem of the call end borrow Transmitting a call packet by the direct connection; wherein the base station subsystem transmits a caller contact information and a call identification number to a server, and the server stores the caller contact information and the call identification number, and the caller The end base station subsystem is based on the call identification number on the servo The device finds and obtains the contact information of the called terminal, and the base station subsystem of the calling terminal establishes the direct connection with the base station subsystem of the called terminal according to the contact information of the called terminal. A wireless communication system includes: an originating base station subsystem coupled to an originating mobile station; A terminating base station subsystem is coupled to a terminating mobile station, and the base station subsystem is connected to the base station via a core network The system exchanges a control message; wherein the utterance base station subsystem and the receiver base station subsystem transmit a contact information by using the exchanged control message, and the utterance base station subsystem and the receiver base station subsystem are in accordance with the liaison The information establishes a direct connection, and the base station subsystem and the base station subsystem transmit a call packet by the direct connection; wherein the base station subsystem broadcasts a call identification number in a broadcast group A call center contact information, the base station subsystem of the call end obtains the contact information of the call center according to the call identification number, and the base station subsystem of the call end establishes the direct connection with the base station subsystem of the call center according to the contact information of the call center. A wireless communication system includes: an originating base station subsystem for coupling an originating mobile station; and a terminating base station subsystem for using a terminating base station subsystem To couple a terminating mobile station, and the base station subsystem exchanges a control message with the base station subsystem via a core network; The utterance base station subsystem and the receiver base station subsystem transmit a contact information by using the exchanged control message, and the utterance base station subsystem and the receiver base station subsystem establish a direct connection according to the contact information. And the base station subsystem and the base station subsystem transmit a call packet by using the direct connection; wherein the base station subsystem broadcasts a call identification number and a call end contact information in a broadcast group, The originating base station subsystem obtains the receiving end contact information according to the call identification number, and the calling end base station subsystem establishes the direct connection with the receiving end base station subsystem according to the called end contact information. 2. The wireless communication system of claim 2, wherein the base station subsystem and the base station subsystem are connected to a gateway, a routing device or a direct access network. 2. The wireless communication system of claim 2, wherein the base station subsystem comprises a base transceiver station, and the base transceiver station is configured to connect to the mobile terminal device. The end base station subsystem includes a receiver base transceiver station, and the receiver base transceiver station is configured to connect to the receiver mobile device. 2. The wireless communication system of 2, 3 or 4, wherein the utterance base station subsystem further comprises a utterance base station controller, the base station base station subsystem further comprising a receiver base station controller. The wireless communication system of 2, 3 or 4, wherein the call identification The number is obtained by the agreement between the base station subsystem and the base station subsystem. A wireless communication method for connecting an originating base station subsystem and a terminating base station, the method comprising: transmitting, according to a call control protocol, the base station subsystem of the calling terminal a call identification number to the base station subsystem of the callee; the base station subsystem transmits a caller contact information and the call identification number to a server, and stores the caller contact information and the call identification number on the server The base station subsystem of the receiving end searches for and obtains the contact information of the calling terminal according to the call identification number; and according to the contact information of the calling terminal, the base station subsystem of the receiving end and the base station subsystem of the calling terminal Establishing a direct connection; and transmitting a call packet by the direct connection. A wireless communication method for connecting an originating base station subsystem and a terminating base station, the method comprising: transmitting, according to a call control protocol, the base station subsystem of the calling terminal a call identification number to the base station subsystem of the callee; the base station subsystem transmits a caller contact information and the call identification number to a server, and stores the contact information and the call information of the callee Not counting the server; the base station subsystem of the calling terminal searches for and obtains the contact information of the called end according to the call identification number; and according to the contact information of the called end, the base station subsystem of the calling terminal and the The base station subsystem of the call end establishes a direct connection; and by means of the direct connection, a packet of a call is transmitted. A wireless communication method for connecting an originating base station subsystem and a terminating base station, the method comprising: transmitting, according to a call control protocol, the base station subsystem of the calling terminal a call identification number to the base station subsystem of the call end; the base station subsystem of the call station broadcasts the call identification number and a call center contact information in a broadcast group; and according to the call identification number, the base station subsystem of the call end Obtaining the utterance contact information; according to the utterance contact information, the base station subsystem of the utterance end establishes a direct connection with the utterance base station subsystem; and the packet of the call is transmitted by the direct connection. A wireless communication method for connecting an originating base station subsystem and a terminating base station, the method comprising: transmitting, according to a call control protocol, the base station subsystem of the calling terminal One call Identifying the number to the receiving base station subsystem; broadcasting, by the receiving base station subsystem, a call identification number and a receiving end contact information in a broadcast group; according to the call identification number, the calling base station subsystem obtains the The receiving end contact information; according to the receiving end contact information, the base station subsystem of the calling end establishes a direct connection with the base station subsystem of the receiving end; and the packet of the call is transmitted by the direct connection. The wireless communication method of 10, 11 or 12, wherein before the step of transmitting, by the base station subsystem, the call identification number to the base station subsystem of the base station, the method further comprises: an originating mobile station ), receiving a service request. The wireless communication method of 10, 11 or 12, wherein before the step of transmitting the packet of the call by the direct connection, the method further comprises: standby the connection established by the call control protocol. The wireless communication method of 10, 11 or 12, wherein the call identification number is obtained by agreement between the base station subsystem and the base station subsystem of the call end.